Adapter



Dec. 25, 1934. w. N. DE SHERBININ 1,985,438

ADAPTER Filed March 23, 1932 INVENTO ATTORNEY Patented Dec. 25, 1934 7 UNITED STATES PATENT OFFICE ADAPTER William N. de Sherbinin, Hastings-on-Hudson, N. Y.

Application March 23, 1932, Serial No. 600,619 3 Claims. (01. 240-428) This invention relates to lamps and shades 21 of sheet metal of some resiliency and of suftherefor and more particularly relates to means ficient thickness to provide rigidity for the disk. for adapting the so-called bridge lamp shade fix- The disk is provided with a central aperture 22 ture to a finial type lamp base which normally having a diameter large enough to fit over the receives only a washer or spider type lamp shade stud 19 of a finial type base. A plurality of equifixture. distantly spaced lugs 23 preferably struck from The invention consists essentially of an adaptthe disk, are bent along the line at which they ing device which may be readily attached to the join the disk so as to extend laterally and at apbridge lamp shade fixture and which may be conproximately right angles from the face of the disk veniently mounted on and secured to a finial type 21 as shown. As clearly shown, the intermediate 10 lamp shade base so that a bridge lamp shade may portion of each lug is bent or curved outwardly be used as a table or floor lamp shade or in other toward the periphery of the disk and the end por- W y tion is bent or curved to extend toward the axis The nature of theinvention, the objects thereof of the disk at an angle of about thirty degrees.

is and the advantages to be derived therefrom will The outer surface of the intermediate portion of l5 become apparent from the following description each lug, indicated 24, provides a bearing portion considered in connection with the accompanying which is adapted to engage the internally threaddrawing forming a part hereof and which illused portion of the annulus 13 of the bridge fixture.

trates a preferred form of my invention. The lugs, of course, possess a suitable degree of In the drawing: resiliency for the purpose intended. The lugs 23 20 Fig. l is a perspective view of a lamp shade and are preferably disposed with their faces normal base embodying the invention; to the radii of the disk and on the circumference Fig. 2 is a perspective view of the adapter of of a circle concentric with the center of the disk y invention; and of a diameter such that the bearing portions Fig. 3 is a bottom plan view of the adapter; of the lugs press firmly against the inner cylin- 25 Fig. 4 is an enlarged partial elevational view drical surface of the annulus. It will be underwith parts in section, of a bridge type lamp shade stood that the disk 21 may be of any desired conmounted on a finial type base in accordance with figuration, other than circular and may also be of my invention; and any convenient thickness and of any suitable ma- Fig. 5 is a view similar to Fig. 4: with the adaptterial. Likewise, the central aperture may be of 30 er in reversed position. any configuration other than circular, such as R f rrin oth dr win r f en e ch r c r square, hexagonal or the like, without in any way 0 in a a bridge yp l mp shade h ving the departing from the spirit of the invention. The usual b idge fi u indicated generally The lugs 23 may conveniently be made separately from 5 fi OOmIJIiSBS a ring 12 Wire other Suitthe disk and secured thereto in any suitable manable material and an inner annulus 13 which R ner as by welding or the like and further may be connected to the ring 12 by spokes 14 extending disposed on the disk and Shaped t t radially from the annulus 13. As shown, the gage any port-Ion of the annulus of t bridge annulus 0011515 of a cylindrical portion fixture other than the inner cylindrical threaded 1 threaded internally to screw on the external surface thereof as shown threads of the usual lamp socket, and a laterally The adapter may be inserted in the annulus extending concavo-convex flange 16 integral with from the top 0 that the disk engages upper the cylindrical portion. Other forms and types portion of the'dnnulus as sh'own in Fig 4 or may of annuli are used of course, but in general, all be .mqerted from the bottom so the disk -13 types will have an internally threaded cylindrical engages the lower pgrfion of the annulus as Shown g gig ig g i j i 0L laterally extendmg in Fig. 5. The direction from which the adapter b I is inserted in the annulus may or may not make a The finial type base generally consists of a base (not shown) suppgrting a stand 17 the upper material difference in the height of the shade on on the type of base to be portion of which above the lamp sockets 25 is the base, depending up formed to provide a shelf 18 above which extends used, that is 150 l dependmg upon whether the a stud l9 whichis adapted to have threaded thereeXBent 0f the Shelf 18 is Such that it engages he dapter may be used on a nut 20 usually of ornamental design. an ulus Or the d sk- The a As shown, the preferred form of adapter of my with any finial type base. invention consists of a circular disk or member It will be apparent from the foregoing that to adapt a bridge lamp shade fixture so that it may be mounted on a finial type base, it is merely necessary to press the adapter of my invention into engaging position with the annulus of the bridge fixture. The bridge shade may then be mounted and secured on a finial type base.

It will be understood that the form of the invention herein disclosed is a preferred form only and that many changes may be made in the adapter shown and described without departing from the spirit or scope of the invention. The invention is not intended to be limited except by the scope of the appended claims.

What I claim is:

1. In combination with a bridge lamp shade fixture having an annulus provided with threads on its inner cylindrical portion, an adapter comprising a disk having a central aperture adapted to receive the stud of a finial type lamp base and a plurality of lugs disposed about said aperture and engaging the threaded portion of the annulus.

2. In combination with a bridge lamp shade fixture having an annulus provided with threads on its inner cylindrical portion, an adapter comprising a flat circular disk having a central aperture adapted to receive the stud of a finial type lamp base and a plurality of lugs disposed about said aperture and engaging the threaded portion of the annulus.

3. In combination with a bridge lamp shade fixture having an annulus provided with threads on its inner cylindrical portion, an adapter comprising a flat disk having an aperture adapted to receive the stud of a finial type lamp base and a plurality of lugs extending outwardly of one side of the disk and engaging the threaded portion of the annulus.

WILLIAM N. DE SHERBININ. 

